Players accessible with native protocols

Creative players, probably all that do not support USB storage, should be supported by gnomad2AUR, available in the AUR.

Sony

Sony Walkman MP3 players released prior to mid-2007 require Sony's proprietary "SonicStage" software to transfer files. Unfortunately, this software is only available for Windows. However, you are better off using the JSymphonic open source software anyway, as you will have more control over your player. JSymphonic is provided by the symphonicAUR package, available in the AUR.

Players accessible as USB storage

Creative

Creative MuVo

Note: For some older MuVo models, deleting settings.dat from the device renders it useless. Newer models do not have the file.

iRiver

All iRiver players with "UMS Mode" firmware are recognized as USB storage

Cowon

iAudio U2 MP3 player

NextCom

flash drive + MP3 player

MPIO

MPIO HD300

Accessing players

You should mount your player, identified as USB storage, to access its contents. See USB Storage Devices for details.